Deuteronilus Mensae

Deuteronius Mensae
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Map showing the relation of Protonilus and Deuteronilus Mensae to other nearby regions. Colors refer to altitudes.
Coordinates43°54′N 337°24′W / 43.9°N 337.4°W / 43.9; -337.4

Deuteronilus Mensae is a region on Mars 937 km across and centered at 43°54′N 337°24′W / 43.9°N 337.4°W / 43.9; -337.4. It covers 344°–325° West and 40°–48° North.[1] Deuteronilus region lies just to the north of Arabia Terra and is included in the Ismenius Lacus quadrangle. It is along the dichotomy boundary, that is between the old, heavily cratered southern highlands and the low plains of the northern hemisphere. The region contains flat-topped knobby terrain that may have been formed by glaciers at some time in the past. Deuteronilus Mensae is to the immediate west of Protonilus Mensae and Ismeniae Fossae.[2][3] Glaciers persist in the region in modern times, with at least one glacier estimated to have formed as recently as 100,000 to 10,000 years ago.[4] Recent evidence from the radar on the Mars Reconnaissance Orbiter has shown that parts of Deuteronilus Mensae do indeed contain ice.[5][6][7]

  1. ^ Patrick Moore; Garry Hunt (1997). The atlas of the solar system. Chancellor. ISBN 978-0-7537-0014-3.
  2. ^ Baker, M. et al. 2010. Flow patterns of lobate debris aprons and lineated valley fill north of Ismeniae Fossae, Mars: Evidence for extensive mid-latitude glaciation in the Late Amazonian. Icarus: 207. 186–209.
  3. ^ "Breathtaking views of Deuteronilus Mensae on Mars".
  4. ^ Rincon, Paul (19 December 2007). "'Active glacier found' on Mars". BBC News.
  5. ^ "HiRISE | Merging Lobate Debris Aprons of Deuteronilus Mensae (PSP_009535_2240)".
  6. ^ http://news.discovery.com/space/mars-ice-sheet-climate.html [dead link‍]
  7. ^ Plaut, J., A. Safaeinili,, J. Holt, R. Phillips, J. Head, J., R. Seu, N. Putzig, A. Frigeri. 2009. Radar evidence for ice in lobate debris aprons in the midnorthern latitudes of Mars. Geophys. Res. Lett. 36. doi:10.1029/2008GL036379.